It depends on the storm. If it is a thunderstorm and there is no shelter nearby, crouch down in the middle of a large area with a limited amount of tall objects nearby. Cars would make a good shelter as well, as they have rubber tires that repel lightning.
If it were a tornado, you need to seek a storm shelter or building with a basement immediately. Run as fast as you can looking for shelter.
If there is a hurricane or flood and there is no nearby shelter, hold onto a sturdy object nearby to stay afloat. If there is shelter, go to the highest level of the highest building. This will make you leas susceptible to the floods below.
A carcinogen is another way of describing a substance that can cause cancer, while a biopsy is a type of operation that examines a person's tissue to see if they have a certain disease. Hope this helps!
Cross Connection and Backflow are so important because they could introduce dangerous substances into the safe drinking water system. All water utilities work hard to meet high standards of safety in order to protect public health from backflow due to cross connection.